In the boiler equipment, the air preheater is also referred to as the heat pipe air preheater, generally referred to as the air preheater. The air preheater can improve the heat exchange performance of the boiler and reduce the heat loss.
The Euromonitor series gas-fired steam boiler launched by Fangkuai Boiler Factory has added the air preheater as an important accessory. After relevant tests, data proves that with this accessory, the boiler can save energy by at least 10%. So, how does the air preheater achieve this 10% energy saving rate? Let the after-sales engineer Xie Gong of Zhengzhou Fangkuai Boiler Factory tell you the answer.
The air preheater uses the heat of the boiler tail flue gas to heat the air required for fuel combustion to improve the efficiency of the boiler. The air preheater is the flue gas in the boiler tail flue through the internal heat sink to preheat the air before entering the boiler The heated surface to a certain temperature. Used to improve the heat exchange performance of the boiler and reduce energy consumption. Generally referred to as an air pre-controller. According to the difference in structure, the air preheater can be divided into two types: tube box type and rotary type. The rotary type is divided into two types: wind hood rotary type and heating surface rotary type. At present, power plant boilers often use heating surface rotary preheaters. The application in boilers is generally two-cell, three-cell, and four-cell types, among which four-cell bins are more commonly used in circulating fluidized bed boilers.
The function of the air preheater is mainly to transfer the heat carried in the flue gas discharged from the flue at the tail of the boiler to the air before entering the boiler through the heat sink, and to preheat the air to a certain temperature. The heat pipe air preheater uses the heat energy of the flue gas at the outlet of the boiler to transfer heat through the superconducting heat pipe to preheat the combustion air of the boiler or other drying purposes.
Of course, we also want to remind everyone to pay attention to the corrosion and ash accumulation of the air preheater, which is harmful to the boiler.
Because the air preheater is located in the lowest flue temperature area in the boiler, especially the cold end of the final air preheater, the air temperature is the lowest, the flue gas temperature is also the lowest, and the heating surface wall temperature is the lowest, so it is most prone to corrosion and dust accumulation.
Recently, Zhengzhou Fangkuai Boiler Sales Co., Ltd. traveled to Dhaka, the capital of Bangladesh, to attend the Bangladesh International Textile, Knitwear & Garment Industry Exhibition (BTKG 2026). It showcased industrial thermal equipment and system solutions adapted to the whole process of textile printing and dyeing, actively expanding the South Asian market.
Bangladesh is an important global producer and exporter of textiles and garments. As a pillar local industry, the textile sector has long-term and strong demand for high-efficiency, stable and energy-saving industrial boilers and thermal equipment, with broad market potential. This exhibition participation is an important measure for Zhengzhou Fangkuai Boiler Sales Co., Ltd. to advance its internationalization strategy and further explore overseas markets.
Relying on its technological accumulation and manufacturing advantages in the field of thermal energy equipment, the company provides targeted thermal energy solutions for local textile, printing and dyeing, garment manufacturing and other industries, helping enterprises improve production efficiency and reduce operating costs. In the future, Zhengzhou Fangkuai Boiler Sales Co., Ltd. will continue to focus on overseas market demands, continuously optimize its product and service system, facilitate the high-quality development of the global textile industry with professional and reliable products, and steadily enhance the brand’s competitiveness and influence in overseas markets.
Trust stems from quality
At the beginning of the new year, Fangkuai Boiler and a leading domestic new energy company have reached another important cooperation, successfully signing an order for a total of 500 steam tons.
